Shoe machine



Jan. 5, 1932. J. H. POPE 1,839,260

SHOE MACHINE Original Filed June 16, 1920 Fig. 6.

Patented Jan. 5, 1932 UNITED STATES MACHINERY CORPORATION,

JERSEY 7 amas JOSEPH H. POPE, OE HAMILTON, MASSACHUSETTS, AssIeNoRf'rO NITED. sHOE sHO MACHINE Original application'filed June 16, 1920, Serial No. 389,397. Patent No 1,631,155, dated June 7, 1927.

Divided and this application filed Gctober 25, 1926. Serial ITO. 143,972.

The present invention relates toshoe machines, it more particularly concerning apparatus for the attachment of heels to shoebottoms. V I

It has for its object the provision of a machine organized for the insertion of nails of the type disclosed in my application Serial No. 143,971, filed on the same date as the present application. Such nails are usefully employed for the attachment of Louis and like heels, which, from a tread of small diameterand a still smaller neck rising from the tread, expand by a sharp curvature to a much greater diameter at the heel-seat. To

drive the attachingnails straight through such a'heel vertically to the tread-surii'ace,v causes their clinching in the shoe-bottom to be so Widely separated from the edge of the heel-seat-end as to produce little resistance to gaping at the rand-crease. If the nails are driven in an inclined direction, only'a small divergence can be given to entering extremities if their bodies are to remain within the walls of the contracted portion of the 7 heel; By the employment of this invention, suitably formed nails may be kept safely within the neck of the heel, and yet the points caused to enter the shoe-bottom in such close proximity to the edge of the ex panded portion that a good joint is assured.

A feature of the invention may be found in a machine including anail-receiving device Or devices having,in a novel relation, a passage and means, as a slot, Opening from and extending longitudinally of the passage and arranged to prevent rotation of a nail therein. This slot, when a nail, such as that of the previously mentioned application, is traveling through the passage inthe direc-' tion of its axis, will receive its guide-projection to hold it in the desired relation to the Outside of the heel, it being at a definite angle with respect to the work-support, by which the shoe being operated upon is presented to thenailmg mechanism. Such an arrangement, to maintain the nails in'predetermined.

' angular positions about their longitudinal axes, is shown as applied to both .the'loading device and the die-block of the machine.

To facilitate the positioning of a nail with and respect to the guide means, as to bring its proection into co-Op'eration with the directing slot of a receiving device, as another feature of the invention, said receiving device is provided with means arranged to turn the nail about its longitudinal axis. In the present embodiment of the improved machine, this is accomplished by an inclined surface situated in proximity to the upper extremity of a nail-receiving passage, where the nailprojection strikes the surface and turnsth'e OF PA'IEBSON, NEW JERSEY, A. CORPORATION OF NEW nail until said projection is in position to enter the guide-slot.

In the accompanymgdrawings,

Fig.4 is a broken perspective view'oii' 'a nail for use in the'illustrated form of myim proved machine p v V Fi 5 is a artial front elevation of su h o I r 1 machine;

Fig. 1 shows in side elevation. a portion of Fig.6 is an enlarged'sectionaldetailtaken through the loading device and die-blockof the machine, with ashoe to be heeledin cooperation with the die-block upon its jack;

Fig. 7 is atop plan View of the nail-receiving cylinder mounted upon the loading def vlce. f

At. S in Fig. 1 appears the bottom counterport'ion ofa shoeha'ving attached to. it a heel H or" the Louis type, ,the. body of which has neck-portion 1O of-re latively small diameter, expanding slightly to the tread-end 12 and heavilyin the opposite direction to the heel-seat-end 14:, the rear and sides of'the' heel thusheing upon Ogee curves. The transverse dimension of the neck 10 maybe as littlei as five-eighths of an inch, While at the heel-seat the diameter maybe nearly three times this. Were the attaching snails" N driven straight through the heel into the shoe-1 bottomin adirection at right angles to the tread-surface, they would come within an area approximately of a ten cent piece, and would obviously be ineffective to hold the heel closely to the upper at the rand-crease. If the nails were driven along straight lines in an inclined direction to enter the shoe-bottom at the points illustrated in Fig. 1, they would, as is indicated at :0, lie almost at the surface of the neck, where they mi ht be struck by the trimming knife, injuring this and spoiling the heels. To keep the nails fully within the substance of the neck-portion and at the some time bring them into the shoe-bottom well toward the periphery of the heel-seat, I employ the heel-attaching machine, a particular embodiment of which is illustrated, in part, at L in Fig. 5; This has a frame 16 carrying a die-block 18, with which co-operates a jack or work-support 20, reciprocatory drivers 22 and an oscillatory loading device or devices 24, each loading device including a loader-block 26. Instead of containing the usual nail-receiving passages, the die-block and loader-block, since the nails used with the type of heels now under consideration are long, are each bored to receive vertical, cylindrical holders 28 and 80, respectively, extending above the blocks and held in place by set-screws 32. Both holders are fixed as to their angular position about their longitudinal axes by keys 34:, which are seated in recesses in the blocks. Through the holders are vertical nail-receiving passages 36 grouped according to the points at which the nails are to enter the heel H, pressed against the under side of the die-block and against the bottom of the shoe S which is jacked upon the work-support 20. When the loadercylinder-3O is in its nail-delivering position over the die-cylinder 28, the two sets of passages 36 are in vertical alinement, so that the nails in the former, released by the usual shutter mechanism, will fall directly into the passages of the latter, there resting with their points upon the heel. Extending longitudi nally of each of the nail-receiving passages in both holders and opening therefrom are slots 38 of less width than the passages and adapted to admit lateral guide-projections 40 from the heel-attaching nails N arranged.

with their axes longitudinally of the passages. Each of these projections is in the form of a small fin struck out of the body of a nail and extending longitudinally at one side in proximity to but somewhat removed from the end opposite the heel-entering point. This point- 42 is preferably formed by a surface la inclined, as by cutting or bending, from one side of the body to the other and bearing a definite angular relation about the longitudinal axis of said body to the projection 40, it being here shown as diametrically opposite to it. When the nails are inserted in the loader-passages, the combined relation between the slots 38, projections 40 and the heel l-l positioned upon the acked shoe, presents the nail-points to the tread-surface of the hccl-body with the inclined surfaces turned inwardl from the corresponding elements of the outer or rved surface of the heel, opposite which the nails are to be driven. The angula positions of all these parts are i F shown in Figs. 2 and 7. Since, when i are dropped, into the passages in the loader-cylinder 30, but a relatively small portion have their projections fortuitously alined with the slots 88, I prefer to provide means for turning the other nails about their longitudinal res, so that the projections will be caused automatically to enter the slots. As herein illustrated, this means consists of inclined surfaces 46 sated between the slots at t ir upper extremities, these surfaces beirni hed by a frusto-conical end of the After the point of a nail has introduced into one of the passages 36 of vl'nder 30 and dropped, its weight, when aro ection l-O strikes a surface 46, causes nail to rotate about its axis until the proection enters the slot, allowing said nail to proceed properly along the passage to the aiined passage in the die-cylinder 28.

Tn attachin a shoe-heel in accordance with this invention, since, to obtain the best results, the paths to be first followed by the nails should be substantially vertical to the tread-surface of the heel H which is to be attached to the shoe S, this heel is first perfonted, as indicated at 48 in Fig. 3 of the drawings, as by a pricking machine, to a depth at which the inner ends of the perforations are at or near the transverse plane ofrthe heel at which the neck-portion begins to expand toward the heel-seat-end. This having been accomplished, the heel is associated ith the jacked shoe in the attaching machine -4, and forced in the customary manner against the die-block beneath the nail-passages in the diecylinder 28. A load of nails N is dropped into the loader-cylinder 30, their project-ions 40 either directly entering the slots 38 or being turned into co-operation therewith by their contact with the surfaces 46. This load is transferred to the die-block, by which. the nails are presented to the heel, and the loader being swung back to its initial position, the drivers 22 descend and force the nails into the heel. At. first, as they pass through the priclted perforations, their paths are straight, as determined by such perforations, but when the points l2 penetrate the material of the heel at the ends of the perforations, the resistance opposing their advance exerts a component of force acting at rightangles to the axes of the nails. This causes their gradual divergence from straight lines in directions opposite to the inclines 44, or toward the outside of the heel, these portions of the paths being curvilinear, as appears in Figs. 1 and 6 of the drawings. Such paths,

being maintained in the proper relation to the outside of the heel by the perforations and by the relation between the guide-slots 38 and the nail-surfaces 44:, cause the nails at all points between the tread-end and the heelseat-end tobe sufficiently removed from the sides, so there is no danger of their breaking through or being struck by the trimming knife, and still the nails are brought to such clinching points in the shoe-bottom that they are relatively close to the rand-crease,

holding this against gaping. The curvature of the nail-paths beyond the extremities of the perforations48 will depend upon the character of the resistance offered to them and upon the inclination of the surfaces 44.

The last factor is a controllable one, the degree of divergence from a straight path varying inversely as the inclination of the point. That is, the sharper the point or the more acute its angle with respect to the longitudinal axis of the nail, the lesswill be the departure of the nail from the vertical. Consequently, by properly forming the points of the nails, they may be caused to closely follow the sides of heels of different contour and to emerge into the desired proximity to the rand-crease. The action of the drivers 22 continues until the projection 40strikes and bears with some pressure against the tread end of the heel-body, it performing, in addition to its angular positioning function, that of the flange upon the well-known collar-nail, holding the heel-lifts against separation. Upon the extremities 52 of nails whichproject beyond the tread-end, a top-lift T is then spanked by the heel-attaching machine in the usual manner, thus completing the heel ing operation. Y

The method of attaching heels by the here in described machine and ashoe thus heeled are made the subject of application Serial No. 389,397, filed June 16, 1920, of whichthe present case is a division. This application became United States Patent No. 1,631,155 on June 7, 1927. v 7

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a heel-attaching machine, nail-receiving devices each having anail-passage, the devices being relatively movable to aline the passages, and guide means constructed and.

arranged to co-operate with a'surface upon a nail and thereby prevent the rotation of said nail in the passages. f

2. In a heel-attaching machine-,a device having a passage arranged to receive nails with their axes lying longitudinally of said )ZLSSZW'G and a slot 0 enin t'from and extendb 23 ing longitudinally of the passage, said slot being arranged to guide nails in their travel through said passage. I g

3. In a heel-attaching machine, a Worksupport, and a nail-receiving device having a nail-passagefand a slot opening from and extending longitudinally of the passage, the slot having a definite angular relation to the Work-support and being arranged to guide nails in their travel through said passage.

j 4. In a heel-attaching machine, a loading device having a passage arranged to maintain a nail in a definite angular relation about its longitudinal axis, a die-block provided with a passage similarly arranged and with which the passage in the loading device may -be alined, and driving means co-operating with the die-block. V I

' 5. Ina heeLattaching machine, a worksupport, aloading device having a passage arranged to maintain a nail with respect to the work'supportin a definite angular posi-' tion about its longitudinal axis, a die-block with which the work-support co-operates provvided with a passage similarly arranged to and arran ed to turn. a nail about its longiceiving device having a nail-passage, guide means constructed and arranged to co-operate with a surface on a nail and thereby prevent I rotation of said nail in the passage and means associated with an extremity of the passage for positioning the nailwith 'respectto the guide means.

9. In a heel-attaching machine, a nail-re ceiving device provided with a substantially vertical passage, a slot opening from and extending longitudinally of the passage and inclined nail-engaging'surfaces at the upper extremity of the passage and at opposite sides of the slot. I

In a heel-attaching machine, nail-re- CGlVHIg devices eachhaving a nail-passage,

the devices being relatively movable to aline the passages, and guide means extending longitudinally of each passage, said guide means being arranged to co-operate with a projection upon a nail and registering when the passages are alined. I

11. I11 a heel-attaching machine, nail-receiving devices each having a nail-passage, the devices belng relatlvely movable to aline the passages, there being a guide-slot opening from each passage and being of less width than said passage. V

12. In a heel-attaching machine, a nailreceiving device having a nail-passage, guide means constructed and arranged to co-0per ate with a surface 011 a naii and thereby prevent rotation of said nail in the passage, and

nail-positioning means (Jo-operating with the passage. 13. In a heel-attaching machine, a nail receiving device having a passage through which nails travel in the direction of their axes and with a guide-slot opening from the side of said passage and means associated m with the passage and constructed and arranged to rotate a nail about its axis and thereby position it With respect to the guideslot.

In testimony whereof I have signed my name to this specification.

JOSEPH H. POPE. 

